ELM 4-905 LED Standoff Equivalent & Substitute Parts

Part Overview

The ELM 4-905 is a T1 LED standoff manufactured by Bivar Inc., designed for vertical mounting applications with a 0.905" (22.99mm) length. This component is constructed from black PVC material and accommodates 3MM LED configurations with 2-lead connections. The part maintains Active product status and is ROHS3 compliant, making it suitable for current production environments. Substitute parts are identified when inventory constraints, lead time requirements, or design flexibility necessitate alternative components that maintain equivalent electrical and mechanical performance within specified tolerance ranges.

Substiute Parts

ELM 4-905

Bivar Inc.In Stock: 1181ELM 4-905 Datasheet

Current PartRFQ

ELM 5-23MM

Bivar Inc.In Stock: 7185ELM 5-23MM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELM 4-905 is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• LED Type: T1 (fixed requirement)
• Material: Black PVC (fixed requirement)
• LED Configuration: 3MM 2-Lead (fixed requirement)
• Mounting Orientation: Vertical (fixed requirement)
• RoHS Compliance: ROHS3 Compliant (fixed requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (fixed requirement)

Allowable Variance:

• Length: ±0.015" (±0.38mm) tolerance permitted for mechanical fit compatibility

The ELM 5-23MM qualifies as a parametric equivalent substitute based on conformance to all primary criteria and length specification within the allowable mechanical tolerance range.

Parameter Comparison

Engineering Selection Recommendations

ELM 4-905 Primary Selection: Select the ELM 4-905 when design specifications explicitly require the 0.905" (22.99mm) length dimension. This part maintains Active product status with full ROHS3 compliance and unlimited moisture sensitivity rating, suitable for standard production environments.

ELM 5-23MM Substitute Selection: The ELM 5-23MM serves as a direct parametric equivalent when the ELM 4-905 is unavailable. The length variance of +0.005" (+0.12mm) falls within standard mechanical tolerance ranges for LED standoff applications. Both parts share identical electrical characteristics, material composition, and regulatory compliance status. Selection of the substitute does not require design modification when mechanical tolerance budgets accommodate the minor length increase.

Compliance Considerations: Both parts maintain ROHS3 compliance and MSL 1 rating, eliminating compliance-related constraints in substitution decisions. Packaging format (Bag) is identical across both options.

Frequently Asked Questions (FAQ)

Q: Can ELM 5-23MM be used as a direct replacement for ELM 4-905 in existing designs?

A: Yes. The ELM 5-23MM qualifies as a parametric equivalent substitute. The length difference of +0.005" (+0.12mm) is within standard mechanical tolerance for LED standoff applications. No electrical or functional differences exist between the parts.

Q: What is the maximum allowable length variance for substitution?

A: The allowable mechanical tolerance for length substitution is ±0.015" (±0.38mm). The ELM 5-23MM length of 0.910" (23.11mm) versus the ELM 4-905 specification of 0.905" (22.99mm) represents a +0.005" (+0.12mm) variance, which is within this tolerance range.

Q: Are there electrical performance differences between ELM 4-905 and ELM 5-23MM?

A: No. Both parts are T1 LED standoffs with identical 3MM 2-lead configurations, material composition (black PVC), and mounting orientation (vertical). Electrical performance is equivalent.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both ELM 4-905 and ELM 5-23MM are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Regulatory compliance is identical.

Q: What packaging format is used for both parts?

A: Both the ELM 4-905 and ELM 5-23MM are supplied in Bag packaging format.

Q: Are there any design considerations when switching from ELM 4-905 to ELM 5-23MM?

A: The primary consideration is the +0.005" (+0.12mm) length increase. Verify that PCB layout, mechanical clearances, and assembly fixtures accommodate this minor dimension change. No electrical or functional redesign is required.